210 	void (*enable_dma)(struct atiixp_modem *chip, int on);
212 	void (*enable_transfer)(struct atiixp_modem *chip, int on);
214 	void (*flush_dma)(struct atiixp_modem *chip);
281 static int snd_atiixp_update_bits(struct atiixp_modem *chip, unsigned int reg,  in snd_atiixp_update_bits()  argument
284 	void __iomem *addr = chip->remap_addr + reg;  in snd_atiixp_update_bits()
298 #define atiixp_write(chip,reg,value) \  argument
299 	writel(value, chip->remap_addr + ATI_REG_##reg)
300 #define atiixp_read(chip,reg) \  argument
301 	readl(chip->remap_addr + ATI_REG_##reg)
302 #define atiixp_update(chip,reg,mask,val) \  argument
303 	snd_atiixp_update_bits(chip, ATI_REG_##reg, mask, val)
324 static int atiixp_build_dma_packets(struct atiixp_modem *chip,  in atiixp_build_dma_packets()  argument
338 		if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),  in atiixp_build_dma_packets()
348 	spin_lock_irqsave(&chip->reg_lock, flags);  in atiixp_build_dma_packets()
349 	writel(0, chip->remap_addr + dma->ops->llp_offset);  in atiixp_build_dma_packets()
350 	dma->ops->enable_dma(chip, 0);  in atiixp_build_dma_packets()
351 	dma->ops->enable_dma(chip, 1);  in atiixp_build_dma_packets()
352 	spin_unlock_irqrestore(&chip->reg_lock, flags);  in atiixp_build_dma_packets()
372 	       chip->remap_addr + dma->ops->llp_offset);  in atiixp_build_dma_packets()
383 static void atiixp_clear_dma_packets(struct atiixp_modem *chip,  in atiixp_clear_dma_packets()  argument
388 		writel(0, chip->remap_addr + dma->ops->llp_offset);  in atiixp_clear_dma_packets()
397 static int snd_atiixp_acquire_codec(struct atiixp_modem *chip)  in snd_atiixp_acquire_codec()  argument
401 	while (atiixp_read(chip, PHYS_OUT_ADDR) & ATI_REG_PHYS_OUT_ADDR_EN) {  in snd_atiixp_acquire_codec()
403 			dev_warn(chip->card->dev, "codec acquire timeout\n");  in snd_atiixp_acquire_codec()
411 static unsigned short snd_atiixp_codec_read(struct atiixp_modem *chip,  in snd_atiixp_codec_read()  argument
418 	if (snd_atiixp_acquire_codec(chip) < 0)  in snd_atiixp_codec_read()
424 	atiixp_write(chip, PHYS_OUT_ADDR, data);  in snd_atiixp_codec_read()
425 	if (snd_atiixp_acquire_codec(chip) < 0)  in snd_atiixp_codec_read()
429 		data = atiixp_read(chip, PHYS_IN_ADDR);  in snd_atiixp_codec_read()
436 		dev_warn(chip->card->dev, "codec read timeout (reg %x)\n", reg);  in snd_atiixp_codec_read()
441 static void snd_atiixp_codec_write(struct atiixp_modem *chip,  in snd_atiixp_codec_write()  argument
447 	if (snd_atiixp_acquire_codec(chip) < 0)  in snd_atiixp_codec_write()
452 	atiixp_write(chip, PHYS_OUT_ADDR, data);  in snd_atiixp_codec_write()
459 	struct atiixp_modem *chip = ac97->private_data;  in snd_atiixp_ac97_read()  local
460 	return snd_atiixp_codec_read(chip, ac97->num, reg);  in snd_atiixp_ac97_read()
467 	struct atiixp_modem *chip = ac97->private_data;  in snd_atiixp_ac97_write()  local
469 		atiixp_write(chip, MODEM_OUT_GPIO,  in snd_atiixp_ac97_write()
473 	snd_atiixp_codec_write(chip, ac97->num, reg, val);  in snd_atiixp_ac97_write()
479 static int snd_atiixp_aclink_reset(struct atiixp_modem *chip)  in snd_atiixp_aclink_reset()  argument
484 	if (atiixp_update(chip, CMD, ATI_REG_CMD_POWERDOWN, 0))  in snd_atiixp_aclink_reset()
488 	atiixp_update(chip, CMD, ATI_REG_CMD_AC_SOFT_RESET, ATI_REG_CMD_AC_SOFT_RESET);  in snd_atiixp_aclink_reset()
489 	atiixp_read(chip, CMD);  in snd_atiixp_aclink_reset()
491 	atiixp_update(chip, CMD, ATI_REG_CMD_AC_SOFT_RESET, 0);  in snd_atiixp_aclink_reset()
494 	while (! (atiixp_read(chip, CMD) & ATI_REG_CMD_ACLINK_ACTIVE)) {  in snd_atiixp_aclink_reset()
496 		atiixp_update(chip, CMD, ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET,  in snd_atiixp_aclink_reset()
498 		atiixp_read(chip, CMD);  in snd_atiixp_aclink_reset()
500 		atiixp_update(chip, CMD, ATI_REG_CMD_AC_RESET, ATI_REG_CMD_AC_RESET);  in snd_atiixp_aclink_reset()
502 			dev_err(chip->card->dev, "codec reset timeout\n");  in snd_atiixp_aclink_reset()
508 	atiixp_update(chip, CMD, ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET,  in snd_atiixp_aclink_reset()
515 static int snd_atiixp_aclink_down(struct atiixp_modem *chip)  in snd_atiixp_aclink_down()  argument
519 	atiixp_update(chip, CMD,  in snd_atiixp_aclink_down()
540 static int snd_atiixp_codec_detect(struct atiixp_modem *chip)  in snd_atiixp_codec_detect()  argument
544 	chip->codec_not_ready_bits = 0;  in snd_atiixp_codec_detect()
545 	atiixp_write(chip, IER, CODEC_CHECK_BITS);  in snd_atiixp_codec_detect()
550 		if (chip->codec_not_ready_bits)  in snd_atiixp_codec_detect()
553 	atiixp_write(chip, IER, 0); /* disable irqs */  in snd_atiixp_codec_detect()
555 	if ((chip->codec_not_ready_bits & ALL_CODEC_NOT_READY) == ALL_CODEC_NOT_READY) {  in snd_atiixp_codec_detect()
556 		dev_err(chip->card->dev, "no codec detected!\n");  in snd_atiixp_codec_detect()
566 static int snd_atiixp_chip_start(struct atiixp_modem *chip)  in snd_atiixp_chip_start()  argument
571 	reg = atiixp_read(chip, CMD);  in snd_atiixp_chip_start()
575 	atiixp_write(chip, CMD, reg);  in snd_atiixp_chip_start()
578 	atiixp_write(chip, ISR, 0xffffffff);  in snd_atiixp_chip_start()
580 	atiixp_write(chip, IER,  in snd_atiixp_chip_start()
591 static int snd_atiixp_chip_stop(struct atiixp_modem *chip)  in snd_atiixp_chip_stop()  argument
594 	atiixp_write(chip, ISR, atiixp_read(chip, ISR));  in snd_atiixp_chip_stop()
596 	atiixp_write(chip, IER, 0);  in snd_atiixp_chip_stop()
612 	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);  in snd_atiixp_pcm_pointer()  local
619 		curptr = readl(chip->remap_addr + dma->ops->dt_cur);  in snd_atiixp_pcm_pointer()
627 	dev_dbg(chip->card->dev, "invalid DMA pointer read 0x%x (buf=%x)\n",  in snd_atiixp_pcm_pointer()
628 		   readl(chip->remap_addr + dma->ops->dt_cur), dma->buf_addr);  in snd_atiixp_pcm_pointer()
635 static void snd_atiixp_xrun_dma(struct atiixp_modem *chip,  in snd_atiixp_xrun_dma()  argument
640 	dev_dbg(chip->card->dev, "XRUN detected (DMA %d)\n", dma->ops->type);  in snd_atiixp_xrun_dma()
647 static void snd_atiixp_update_dma(struct atiixp_modem *chip,  in snd_atiixp_update_dma()  argument
657 static void snd_atiixp_check_bus_busy(struct atiixp_modem *chip)  in snd_atiixp_check_bus_busy()  argument
660 	if (atiixp_read(chip, CMD) & (ATI_REG_CMD_MODEM_SEND1_EN |  in snd_atiixp_check_bus_busy()
665 	atiixp_update(chip, IER, ATI_REG_IER_MODEM_SET_BUS_BUSY, bus_busy);  in snd_atiixp_check_bus_busy()
673 	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);  in snd_atiixp_pcm_trigger()  local
681 	spin_lock(&chip->reg_lock);  in snd_atiixp_pcm_trigger()
684 		dma->ops->enable_transfer(chip, 1);  in snd_atiixp_pcm_trigger()
688 		dma->ops->enable_transfer(chip, 0);  in snd_atiixp_pcm_trigger()
696 	snd_atiixp_check_bus_busy(chip);  in snd_atiixp_pcm_trigger()
698 		dma->ops->flush_dma(chip);  in snd_atiixp_pcm_trigger()
699 		snd_atiixp_check_bus_busy(chip);  in snd_atiixp_pcm_trigger()
702 	spin_unlock(&chip->reg_lock);  in snd_atiixp_pcm_trigger()
714 static void atiixp_out_flush_dma(struct atiixp_modem *chip)  in atiixp_out_flush_dma()  argument
716 	atiixp_write(chip, MODEM_FIFO_FLUSH, ATI_REG_MODEM_FIFO_OUT1_FLUSH);  in atiixp_out_flush_dma()
720 static void atiixp_out_enable_dma(struct atiixp_modem *chip, int on)  in atiixp_out_enable_dma()  argument
723 	data = atiixp_read(chip, CMD);  in atiixp_out_enable_dma()
727 		atiixp_out_flush_dma(chip);  in atiixp_out_enable_dma()
731 	atiixp_write(chip, CMD, data);  in atiixp_out_enable_dma()
735 static void atiixp_out_enable_transfer(struct atiixp_modem *chip, int on)  in atiixp_out_enable_transfer()  argument
737 	atiixp_update(chip, CMD, ATI_REG_CMD_MODEM_SEND1_EN,  in atiixp_out_enable_transfer()
742 static void atiixp_in_enable_dma(struct atiixp_modem *chip, int on)  in atiixp_in_enable_dma()  argument
744 	atiixp_update(chip, CMD, ATI_REG_CMD_MODEM_IN_DMA_EN,  in atiixp_in_enable_dma()
749 static void atiixp_in_enable_transfer(struct atiixp_modem *chip, int on)  in atiixp_in_enable_transfer()  argument
752 		unsigned int data = atiixp_read(chip, CMD);  in atiixp_in_enable_transfer()
755 			atiixp_write(chip, CMD, data);  in atiixp_in_enable_transfer()
758 		atiixp_update(chip, CMD, ATI_REG_CMD_MODEM_RECEIVE_EN, 0);  in atiixp_in_enable_transfer()
762 static void atiixp_in_flush_dma(struct atiixp_modem *chip)  in atiixp_in_flush_dma()  argument
764 	atiixp_write(chip, MODEM_FIFO_FLUSH, ATI_REG_MODEM_FIFO_IN_FLUSH);  in atiixp_in_flush_dma()
770 	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);  in snd_atiixp_playback_prepare()  local
773 	spin_lock_irq(&chip->reg_lock);  in snd_atiixp_playback_prepare()
775 	data = atiixp_read(chip, MODEM_OUT_FIFO);  in snd_atiixp_playback_prepare()
778 	atiixp_write(chip, MODEM_OUT_FIFO, data);  in snd_atiixp_playback_prepare()
779 	spin_unlock_irq(&chip->reg_lock);  in snd_atiixp_playback_prepare()
795 	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);  in snd_atiixp_pcm_hw_params()  local
806 	err = atiixp_build_dma_packets(chip, dma, substream,  in snd_atiixp_pcm_hw_params()
814 		if (! chip->ac97[i])  in snd_atiixp_pcm_hw_params()
816 		snd_ac97_write(chip->ac97[i], AC97_LINE1_RATE, params_rate(hw_params));  in snd_atiixp_pcm_hw_params()
817 		snd_ac97_write(chip->ac97[i], AC97_LINE1_LEVEL, 0);  in snd_atiixp_pcm_hw_params()
825 	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);  in snd_atiixp_pcm_hw_free()  local
828 	atiixp_clear_dma_packets(chip, dma, substream);  in snd_atiixp_pcm_hw_free()
860 	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);  in snd_atiixp_pcm_open()  local
888 	spin_lock_irq(&chip->reg_lock);  in snd_atiixp_pcm_open()
889 	dma->ops->enable_dma(chip, 1);  in snd_atiixp_pcm_open()
890 	spin_unlock_irq(&chip->reg_lock);  in snd_atiixp_pcm_open()
899 	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);  in snd_atiixp_pcm_close()  local
903 	spin_lock_irq(&chip->reg_lock);  in snd_atiixp_pcm_close()
904 	dma->ops->enable_dma(chip, 0);  in snd_atiixp_pcm_close()
905 	spin_unlock_irq(&chip->reg_lock);  in snd_atiixp_pcm_close()
915 	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);  in snd_atiixp_playback_open()  local
918 	mutex_lock(&chip->open_mutex);  in snd_atiixp_playback_open()
919 	err = snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_PLAYBACK], 0);  in snd_atiixp_playback_open()
920 	mutex_unlock(&chip->open_mutex);  in snd_atiixp_playback_open()
928 	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);  in snd_atiixp_playback_close()  local
930 	mutex_lock(&chip->open_mutex);  in snd_atiixp_playback_close()
931 	err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_PLAYBACK]);  in snd_atiixp_playback_close()
932 	mutex_unlock(&chip->open_mutex);  in snd_atiixp_playback_close()
938 	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);  in snd_atiixp_capture_open()  local
939 	return snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_CAPTURE], 1);  in snd_atiixp_capture_open()
944 	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);  in snd_atiixp_capture_close()  local
945 	return snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_CAPTURE]);  in snd_atiixp_capture_close()
991 static int snd_atiixp_pcm_new(struct atiixp_modem *chip)  in snd_atiixp_pcm_new()  argument
997 	chip->dmas[ATI_DMA_PLAYBACK].ops = &snd_atiixp_playback_dma_ops;  in snd_atiixp_pcm_new()
998 	chip->dmas[ATI_DMA_CAPTURE].ops = &snd_atiixp_capture_dma_ops;  in snd_atiixp_pcm_new()
1001 	err = snd_pcm_new(chip->card, "ATI IXP MC97", ATI_PCMDEV_ANALOG, 1, 1, &pcm);  in snd_atiixp_pcm_new()
1007 	pcm->private_data = chip;  in snd_atiixp_pcm_new()
1009 	chip->pcmdevs[ATI_PCMDEV_ANALOG] = pcm;  in snd_atiixp_pcm_new()
1012 					      snd_dma_pci_data(chip->pci),  in snd_atiixp_pcm_new()
1025 	struct atiixp_modem *chip = dev_id;  in snd_atiixp_interrupt()  local
1028 	status = atiixp_read(chip, ISR);  in snd_atiixp_interrupt()
1035 		snd_atiixp_xrun_dma(chip,  &chip->dmas[ATI_DMA_PLAYBACK]);  in snd_atiixp_interrupt()
1037 		snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]);  in snd_atiixp_interrupt()
1039 		snd_atiixp_xrun_dma(chip,  &chip->dmas[ATI_DMA_CAPTURE]);  in snd_atiixp_interrupt()
1041 		snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]);  in snd_atiixp_interrupt()
1047 		spin_lock(&chip->reg_lock);  in snd_atiixp_interrupt()
1048 		chip->codec_not_ready_bits |= detected;  in snd_atiixp_interrupt()
1049 		atiixp_update(chip, IER, detected, 0); /* disable the detected irqs */  in snd_atiixp_interrupt()
1050 		spin_unlock(&chip->reg_lock);  in snd_atiixp_interrupt()
1054 	atiixp_write(chip, ISR, status);  in snd_atiixp_interrupt()
1064 static int snd_atiixp_mixer_new(struct atiixp_modem *chip, int clock)  in snd_atiixp_mixer_new()  argument
1080 	if (snd_atiixp_codec_detect(chip) < 0)  in snd_atiixp_mixer_new()
1083 	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)  in snd_atiixp_mixer_new()
1086 	chip->ac97_bus = pbus;  in snd_atiixp_mixer_new()
1090 		if (chip->codec_not_ready_bits & codec_skip[i])  in snd_atiixp_mixer_new()
1093 		ac97.private_data = chip;  in snd_atiixp_mixer_new()
1094 		ac97.pci = chip->pci;  in snd_atiixp_mixer_new()
1097 		if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {  in snd_atiixp_mixer_new()
1098 			chip->ac97[i] = NULL; /* to be sure */  in snd_atiixp_mixer_new()
1099 			dev_dbg(chip->card->dev,  in snd_atiixp_mixer_new()
1107 		dev_err(chip->card->dev, "no codec available\n");  in snd_atiixp_mixer_new()
1124 	struct atiixp_modem *chip = card->private_data;  in snd_atiixp_suspend()  local
1129 		snd_pcm_suspend_all(chip->pcmdevs[i]);  in snd_atiixp_suspend()
1131 		snd_ac97_suspend(chip->ac97[i]);  in snd_atiixp_suspend()
1132 	snd_atiixp_aclink_down(chip);  in snd_atiixp_suspend()
1133 	snd_atiixp_chip_stop(chip);  in snd_atiixp_suspend()
1140 	struct atiixp_modem *chip = card->private_data;  in snd_atiixp_resume()  local
1143 	snd_atiixp_aclink_reset(chip);  in snd_atiixp_resume()
1144 	snd_atiixp_chip_start(chip);  in snd_atiixp_resume()
1147 		snd_ac97_resume(chip->ac97[i]);  in snd_atiixp_resume()
1167 	struct atiixp_modem *chip = entry->private_data;  in snd_atiixp_proc_read()  local
1171 		snd_iprintf(buffer, "%02x: %08x\n", i, readl(chip->remap_addr + i));  in snd_atiixp_proc_read()
1174 static void snd_atiixp_proc_init(struct atiixp_modem *chip)  in snd_atiixp_proc_init()  argument
1178 	if (! snd_card_proc_new(chip->card, "atiixp-modem", &entry))  in snd_atiixp_proc_init()
1179 		snd_info_set_text_ops(entry, chip, snd_atiixp_proc_read);  in snd_atiixp_proc_init()
1182 #define snd_atiixp_proc_init(chip)  argument
1190 static int snd_atiixp_free(struct atiixp_modem *chip)  in snd_atiixp_free()  argument
1192 	if (chip->irq < 0)  in snd_atiixp_free()
1194 	snd_atiixp_chip_stop(chip);  in snd_atiixp_free()
1197 	if (chip->irq >= 0)  in snd_atiixp_free()
1198 		free_irq(chip->irq, chip);  in snd_atiixp_free()
1199 	iounmap(chip->remap_addr);  in snd_atiixp_free()
1200 	pci_release_regions(chip->pci);  in snd_atiixp_free()
1201 	pci_disable_device(chip->pci);  in snd_atiixp_free()
1202 	kfree(chip);  in snd_atiixp_free()
1208 	struct atiixp_modem *chip = device->device_data;  in snd_atiixp_dev_free()  local
1209 	return snd_atiixp_free(chip);  in snd_atiixp_dev_free()
1222 	struct atiixp_modem *chip;  in snd_atiixp_create()  local
1228 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);  in snd_atiixp_create()
1229 	if (chip == NULL) {  in snd_atiixp_create()
1234 	spin_lock_init(&chip->reg_lock);  in snd_atiixp_create()
1235 	mutex_init(&chip->open_mutex);  in snd_atiixp_create()
1236 	chip->card = card;  in snd_atiixp_create()
1237 	chip->pci = pci;  in snd_atiixp_create()
1238 	chip->irq = -1;  in snd_atiixp_create()
1240 		kfree(chip);  in snd_atiixp_create()
1244 	chip->addr = pci_resource_start(pci, 0);  in snd_atiixp_create()
1245 	chip->remap_addr = pci_ioremap_bar(pci, 0);  in snd_atiixp_create()
1246 	if (chip->remap_addr == NULL) {  in snd_atiixp_create()
1248 		snd_atiixp_free(chip);  in snd_atiixp_create()
1253 			KBUILD_MODNAME, chip)) {  in snd_atiixp_create()
1255 		snd_atiixp_free(chip);  in snd_atiixp_create()
1258 	chip->irq = pci->irq;  in snd_atiixp_create()
1260 	synchronize_irq(chip->irq);  in snd_atiixp_create()
1262 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {  in snd_atiixp_create()
1263 		snd_atiixp_free(chip);  in snd_atiixp_create()
1267 	*r_chip = chip;  in snd_atiixp_create()
1276 	struct atiixp_modem *chip;  in snd_atiixp_probe()  local
1285 	if ((err = snd_atiixp_create(card, pci, &chip)) < 0)  in snd_atiixp_probe()
1287 	card->private_data = chip;  in snd_atiixp_probe()
1289 	if ((err = snd_atiixp_aclink_reset(chip)) < 0)  in snd_atiixp_probe()
1292 	if ((err = snd_atiixp_mixer_new(chip, ac97_clock)) < 0)  in snd_atiixp_probe()
1295 	if ((err = snd_atiixp_pcm_new(chip)) < 0)  in snd_atiixp_probe()
1298 	snd_atiixp_proc_init(chip);  in snd_atiixp_probe()
1300 	snd_atiixp_chip_start(chip);  in snd_atiixp_probe()
1303 		card->shortname, pci->revision, chip->addr, chip->irq);  in snd_atiixp_probe()